What is the root source of Light ?

AI Thread Summary
The root source of light is tied to the initial energy present in the universe, which began in a hot and dense state. All forms of energy, including light, are derived from this primordial energy. A theory related to the nature of light is the neutrino theory, although it is not widely accepted and remains largely speculative. The discussion emphasizes the distinction between light as a fundamental energy source and light produced through transformation from other energy forms. Understanding the origins of light involves exploring both established theories and unconventional ideas.
pravdt
Messages
3
Reaction score
0
What is the root source of "Light"?

I'm not talking about converted/transformed energy via external sources, i.e. Electricity or heat transformed to Light.
Whats the root source?
Energy itself?
 
Science news on Phys.org


Welcome to PF!

The universe started with a lot of energy: In the beginning, it was hot and dense. All energy that exists today, including light, is ultimately derived from that initial state.
 


russ_watters said:
Welcome to PF!

The universe started with a lot of energy: In the beginning, it was hot and dense. All energy that exists today, including light, is ultimately derived from that initial state.

Thanks a lot. :)
 
Thread 'A quartet of epi-illumination methods'

Thread 'A quartet of epi-illumination methods'

Well, it took almost 20 years (!!!), but I finally obtained a set of epi-phase microscope objectives (Zeiss). The principles of epi-phase contrast is nearly identical to transillumination phase contrast, but the phase ring is a 1/8 wave retarder rather than a 1/4 wave retarder (because with epi-illumination, the light passes through the ring twice). This method was popular only for a very short period of time before epi-DIC (differential interference contrast) became widely available. So...
View full post »

Thread 'Effective absorption coefficient of gold nanoparticles'

I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...
View full post »

Similar threads

I How to couple light from a very small source into spectrometer?
Replies
10
Views
1K
I What happens if I place light sources on the plane perpendicular to the principle axis of cylindrical lens?
Replies
1
Views
2K
I It's still not clear to me what's the limit of light propagation
Replies
6
Views
2K
Distance between light source and slits in the double slit
Replies
1
Views
6K
I Condenser lens retrofit for a lighting application
Replies
24
Views
2K
I Minimum light bulb wattage for solar simulator
Replies
11
Views
3K
Diffraction of light and conservation of energy.
Replies
3
Views
2K
What makes a light source "brighter"?
Replies
7
Views
5K
Rayleigh criterion when light phase is known
Replies
4
Views
4K
Controlling light diffraction angle with a holographic "lens"
Replies
15
Views
6K

Hot Threads

Recent Insights

Back
Top